Home / 3,742.91-5,159.57-3,078.61

Finding the Fourth Proportional to 3,742.91, 5,159.57 and 3,078.61

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Solution

The fourth proportional to 3,742.91, 5,159.57 and 3,078.61 is: 4,243.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.91 : 5,159.57 = 3,078.61 : x
  2. Step 2: Convert to fraction form
    3,742.91/5,159.57 = 3,078.61/x
  3. Step 3: Cross multiply
    3,742.91x = 5,159.57 × 3,078.61
  4. Step 4: Simplify right side
    3,742.91x = 15,884,275.51
  5. Step 5: Solve for x
    x = 15,884,275.51/3,742.91
  6. Step 6: Final answer
    x = 4,243.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.